BMW 5 Series: Entertainment

 Run-flat tires

Concept Run-flat tires permit continued driving under restricted conditions even in the event of a complete loss of tire inflation pressure. General information The wheels consist of tires that are self-supporting, to a limited degree, and possibly special rims. The support of the sidewall allows t

 Coasting

Concept Under certain conditions the engine is automatically decoupled from the transmission in the D selector lever position. The vehicle continues traveling with the engine idling to reduce consumption. Selector lever position D remains engaged. This driving condition is referred to as coasting.